CVE-2026-33628
Invoice Ninja Denylist Bypass may Lead to Stored XSS via Invoice Line Items
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
11th
Invoice Ninja is a source-available invoice, quote, project and time-tracking app built with Laravel. Invoice line item descriptions in Invoice Ninja v5.13.0 bypass the XSS denylist filter, allowing stored XSS payloads to execute when invoices are rendered in the PDF preview or client portal. The line item description field was not passed through `purify::clean()` before rendering. This is fixed in v5.13.4 by the vendor by adding `purify::clean()` to sanitize line item descriptions.
| CWE | CWE-79 CWE-116 CWE-184 |
| Vendor | invoiceninja |
| Product | invoiceninja |
| Published | Mar 26, 2026 |
| Last Updated | Mar 27, 2026 |
Stay Ahead of the Next One
Get instant alerts for invoiceninja invoiceninja
Be the first to know when new medium vulnerabilities affecting invoiceninja invoiceninja are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
invoiceninja / invoiceninja
< 5.13.4